CBSE > Class 08 > Mathematics | CBSE Board | Homework Help

let common factor be x, given length of the side of triangle are in the ratio 3:4:5 sides are 3x, 4x and 5x and given perimeter is 60 cm. perimeter of triangle is sum of all sides 3x+4x+5x=60 12x=60 x=60/12 x=5 therefor sides are 3x=3(5)=15 com 4x=4(5)=20cm 5x=5(5)=25 cm

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A number is 10 more than other number.The sum of them is 74. Find numbers

Posted by Surbhi Garg 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Anjana Menon 6 years ago

42 and 32

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Buddhabhushan Waghmare 6 years ago

(X+10)+x=74

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What is the area of semicircle and perimeter of semicircle

Posted by Salman Khan Roy 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Anjana Menon 6 years ago

Area of semicircle= 1/2*22/7*r^2 Perimeter=22/7*r+d

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Salim bought an article for ₹784 which included GST of 12% . What is the price of the article before GST was added

Posted by Sakina Zaidi 6 years ago

CBSE > Class 08 > Mathematics

3 answers

R. Ahalya C. Ramu 6 years ago

,100/112*784=700

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Anjana Menon 6 years ago

Rs.700

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Buddhabhushan Waghmare 6 years ago

=12%of 784 =98.08 = 98.08 is GST of 784 =784-98.08=685.92 =the price of artical befor GST was 682.92

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4+6

Posted by Prince Yadav 6 years ago

CBSE > Class 08 > Mathematics

8 answers

Ritesh Yadav 5 years, 11 months ago

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Tiger Wolve 6 years ago

46 ? real answer = 10, This is not a place to ask dumb questions!!??

1Thank You

Ark Kumar 6 years ago

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Prem Patel 6 years ago

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R. Ahalya C. Ramu 6 years ago

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Salomi Gopinath 6 years ago

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Anjana Menon 6 years ago

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Sakina Zaidi 6 years ago

2Thank You

ANSWER

Rs agrawal

Posted by Mahtab Sheaikh 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Tiger Wolve 6 years ago

He Creates mathmatical guides and course books, Don't ask dumb questions!??

0Thank You

Mahtab Sheaikh 6 years ago

Polygon s

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A milk man sold two of his buffaloes for 20000 each .on one he made a gain of 5% and on other a loss of 10% find his overall profit or loss

Posted by Manivardhan Yarlagadda 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Prajwal Srinath 6 years ago

Each buffaloes cost is 20000 First b Gain of 5 %percent Gain=percent÷100*s.p 5÷100*20000=1000

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0.10m ×0.24

Posted by Hemant Mehalwat 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Prajwal Srinath 6 years ago

0.024 sorry for the first ans.

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Prajwal Srinath 6 years ago

2.40

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Area of cube perimeter

Posted by Harmanjot Singh Samrao 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Prajwal Srinath 6 years ago

6(l)square

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At Shimla on 5th january 2012 the temperature was -2 C at 6:00a.m. By noon the temperature had risen by 12 C as compared to 6:00a.m. At 5:00 p.m.had fallen by 8 C as compared to noon. At 10:00 p.m. further fallen down by 10 C as compared to 5:00 p.m.

Posted by Heimonmi War 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Ramakrishna Avasarala 6 years ago

-8

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The angle of a triangle ABC are in the ratio 2 3 4 find the largest angle of the triangle

Posted by Lucky Tiwari 6 years ago

CBSE > Class 08 > Mathematics

4 answers

Piyush Singh 6 years ago

Angel 4 is the largest

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Anjana Menon 6 years ago

Angle 4=80° is the largest angle

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Bhargav V 6 years ago

2+3+4=9 2/9*180=40° 3/9*180=60° 4/9*180=80° Therefore,the largest angle is 80°

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Ranjan Kumar 6 years ago

Angle 4 is the largest angle of triangle

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x^2+11x+18 factorise it

Posted by Rushita Kadam 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Tony Sarma 6 years ago

No common factors so the answer will be 1 (x^2+11x 18)

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Every even power of (-1) is

Posted by Charu Morani 6 years ago

CBSE > Class 08 > Mathematics

7 answers

Piyush Singh 6 years ago

0Thank You

Prajwal Srinath 6 years ago

0Thank You

Bhargav V 6 years ago

0Thank You

Ranjan Kumar 6 years ago

0Thank You

Mamta Sharma 6 years ago

2Thank You

Naresh Choudhary 5 years, 11 months ago

Madar choa

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Naresh Choudhary 6 years ago

3Thank You

ANSWER

{6-¹+(3/2)-¹}-¹

Posted by Piyush Goyal 6 years ago

CBSE > Class 08 > Mathematics

3 answers

Bhargav V 6 years ago

{1/6+(2/3)}-1 Lcm=6 ={1/6+4/6}-1 =(5/6)-1 =6/5

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Naresh Choudhary 6 years ago

Bhosdike

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Piyush Goyal 6 years ago

Plzz answer

3Thank You

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Why is formula 360/n is used

Posted by Salman Khan Roy 6 years ago

CBSE > Class 08 > Mathematics

3 answers

Ritesh Yadav 5 years, 11 months ago

It is the formula for find exterior angle

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Salman Khan Roy 6 years ago

Hey Nitesh choudhary , If you dont know the answer so you dont need to tell every one that you dont know ,,like a fool Beware your foolish words.. Understood ??

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Mamta Sharma 6 years ago

Area o circle

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a=8 cm Find lateral surface area , total surface area and volume

Posted by Drishti Vats 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Ritesh Yadav 5 years, 11 months ago

Volume-512 Lateral surface area-32 Total service area-48

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Prajwal Srinath 6 years ago

Of what's

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Find the perimeter of the semi- circle whose diameter is 10cm and radius 5cm

Posted by Mukesh Sharma 6 years ago

CBSE > Class 08 > Mathematics

3 answers

Nandini Rajanal 6 years ago

15.7 cm

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Mangal Pandey 6 years ago

Sorry right answer is 17.142cmsquare

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Mangal Pandey 6 years ago

25cm*cm

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Two cylinders have equal volumes. If their heights are in the ratio 1:9, then find the ratio of their radius.

Posted by Neha Basheer 6 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Find the area of a circle if its circumference is 35.2sq cm

Posted by Maana Kaushik 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Mukesh Sharma 6 years ago

Find the perimeter of semi circle whose diameter is 10cm and radius is 5cm

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2x-2x

Posted by Gourav Sharma 6 years ago

CBSE > Class 08 > Mathematics

3 answers

Ritesh Yadav 5 years, 11 months ago

0Thank You

Saikat Mandal 6 years ago

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Gourav Sharma 6 years ago

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ANSWER

What is the area of Polo million

Posted by Vishal Singh 6 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Find the cube root of 13824

Posted by Havish Singh 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Yogita Ingle 6 years ago

13824 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3

Grouping

= 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3

Taking one factor from each group

∛13824 = 2 x 2 x 2 x 3

∛13824 = 24

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Abjal Ahmad 6 years ago

2641807540224

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Four horse are tethered with equal ropes at 4 corner of a square field of side 70m so that they can reach one another. Find the area left ungrazed by the horse

Posted by Ajay Singh 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 6 years ago

Area of square = 70*70= 4900sqm
horses can just reach 1 other implies radius of circle is half the side i.e 35m
total area 1 horse can cover =22/7(35*35)=3850sqm
area that a horse can cover on the field is only 90degrees of the circle so area will be 1/4(3850)sqm

total area covered inside grazing area by 4 horses = 4(1/4(3850))= 3850sqm

so total area left ungrazed = 4900-3850= 1050sqm

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5m-3m=8÷9

Posted by Tech Guru 6 years ago

CBSE > Class 08 > Mathematics